#include <Keypad.h>

const int ROWS = 1;
const int COLS = 5;

char keys[ROWS][COLS] = {
  {' ', 'l', 'u', 'd', 'r'}
  // {'1', '2', '3', '4', '5'}
};

byte R_PINS[ROWS] = {3};
byte C_PINS[COLS] = {8, 7, 6, 5, 4};

Keypad keypad = Keypad(makeKeymap(keys), R_PINS, C_PINS, ROWS, COLS);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  char key = keypad.getKey();
  
  if(key){
    if(key == ' '){
      Serial.println("Space");
    }else if(key == 'l'){
      Serial.println("Left");
    }
    else if(key == 'u'){
      Serial.println("Up");
    }
    else if(key == 'd'){
      Serial.println("Down");
    }
    else if(key == 'r'){
      Serial.println("Right");
    }
  }
}